Acetylene-gas lamp.



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DANIEL BROWVN, OF NEVVARK, NElV JERSEY.

ACETYLEN E-GAS LAM P.

SPECIFICATION forming part of Letters Patent Ne. 681,(316, dated August27, 1901.

Application filed February 20,1901. Serial Noi 48,048. (No model) To(all whom it may cmtcrn;

Be it known that I, DANIEL BROWN, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Inprovements in Lanps, of which thefollowing is a full and complete specification, such as will enablethose skilled in the art to which it appertains to make and use thesane.

This invention relates to acetylene-gas lamps; and the object thereof isto provide a small lamp of this class which may be used as abicycle-lanp, as a doctofis or surgeons lamp, and for many otherpurposes where small lamps of higher illuminating power are required.

This invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by the same reference characters ineach of the views, and in which- Figure 1 is a side View of my improvedlamp, and Fig. 2 is a central vertical section thereof.

In the practice of my invention I provide a tube 5, which is provided atthe top thereof with a cap 6 and at the lower end with a waterreservoir7, detachably connected therewith in any desired manner, and saidreservoir is provided at a predetermined distance from the top with atransverse closingplate S, in the center of which is a nozzle 9, which,as shown in the drawings, is closed by a cork or plug 10, but anysuitable device may be einployed for this purpose. The cap 6 of the tube5 is largest at its lower end, and the central portion thereof isreduced, as shown at ll, and the top portion still more reduced, asshown at 12, and within the central reduced portion 11 is placed asupplemental tube 13, the upper end of which is secured within said capand between which and the tube 5 is an annular space 14:, and the lowerend of the tube 13 is closed by a cork orplug 15, provided withperforations 16, but the lower end of the tube 13 may be closed,however, in any desired manner, all that is necessary in this connectionbeing to provide a suit-able closure device having perforations. I alsoprovide a central tube 17, which serves as a carbid-receptacle, and thistube is open at the lower end, and the upper end thereof is closed by aplug 18, having perforations 19, but the upper end of said tube may beclosed in any dcsired manner, all that is necessary in this connectionbeing to provide a suitable closure device having perforations.

The cap G is removable from the enter tube 5,and the carbid-rcceptacleis removable from the inner tube 13, it being nnderstood that the plug15 is renovable from the lower end of the tube 13 in order to remove thecarbidreceptacle. In practice the ca'bicla'eceptacle is filled withcarbid, as shown at 20. The burner-tube 21 passes through one side ofthe cap G and through one side of the tube 13, and this burner-tube isprovided at the outer end thereof with a tip 22 and near said end with arefiector 23, and when the parts are connected, as shown and described,all that is necessary to start the generation of gas is to detach thereservoir 7, remove the cork or plug 10, and place said reservoir inposition and invert the device. In this operation the water flows fromthe reservoir 7 into the main outer tube 5, and when said tube is fullof water the reservoir is again connected with said tube, the plug 10being first placed in the orifice 9 and the device held in an uprightposition. The Water then fiows through the plug 15 and mingles with thecarbid in the carbid-receptacle 17, and gas is generated within andpasses out through the plug 18 at the upper end of the carbid-receptacleand through the burner-tube 21 and nay be ignited at the tip 22.

In practice I prefer to provide a number of the carbid-receptacles 17,each of the same being filled with carbid, and the party using this lanpmay always have a number of said receptacles ready for use.

The operation of detaching the reservoir 7 and filling the tube 5 withwater may be repeated as often as desired, andanew carbidreceptacle maybe substituted for the eX- hausted one whenever necessary. A lamp madein this way will operate with a single carbid-receptacle, for about anhour and a half, as hereinabove stated, and a new carbid-receptacle maybe inserted whenever necessary, or, if convenient, the oldcarbid-receptacle may be emptied and refilled.

The main outer tube or casing 5 is provided at one side with a hook orother device 24,

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by which it may be Suspended from any suitable support, and the entiredeviee is simple in Construction and operation and perfectly adapted toaecomplish the result for which it is intended, and changes in andmodifications of the Construction described maybe made Without departingfrom the spirit of my invention or sacrific-ing its advantages.

Having fuliy described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

l. An acetylene-gas Iamp,oomprising in its Construction an outer casing,an inner tube of the same diameter throughout its length within saidcasing, a cap surrounding the upper end of said outer casing andprovided with a plurality of annular shouiders, one of which is adaptedto engage the upper end of said inner tube and retain the same eentrallyof the outer casing, thereby providing an annular space between saidinner tube and outer casing, a perforated closure in the lower end ofsaid inner tube, a oarbid-receptacie within said inner tube, means forsupplying water to said carbid-receptacle, and a flametube conmunicatingwith said inner tube, substantiaily as described.

2. An acetylene-gas 1amp,comprising in its Construction an outer oasing,an inner tube within the same, a cap surrounding the upper end of saidouter casing and provided With an annular shoulder adapted to engage theupper end of said inner tube and retain the same in position within saidouter cas ing, thereby providing an annular space between the inner tubeand the outer casing, the said annular shoulder of said cap at the sametime serving to close the upper end of said annular space, Whereby waterplaced in said space cannot enter the inner tube at the top, acarbid-reeeptacle within said inner tube, means for supplying waterthereto, and a flame-tube penetrating said cap at a point on saidannular shoulder, whereby the inner end of said tube communicates withthe inner tube, and the outer end extends at right angles to the saidouter easing and beyond the same, substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 16th day ofFebruary, 1901.;

DANIEL BROWN. VVitnesses:

F. A. STEWART, F. TELLER.

